Lock.



E. A. CHRISTOPH.

LOCK.

APPLICATION FILED MAR. 27. 1913.

Patented Nov. 14, 1916.

`man. A.' CHRISTOPH, oFcIIIcaeo, ILLINOIS, ASsIeNoR, BY MESNE ASSIGNMENTS. 'ro

THE KING LOCK COMPANY, F CHICAGO, ILLINOIS, A CORPORATION OF ILIINOIS.

LOCK.

1,204,545. Specification 0f Letters Patent Patented Nov. 14, 1916.. Application led March 27, 1918. Serial No. 757,086.

To all whom it may concern.' foremost tumblers are provided with ex- Be it known that I, EMILA. CHRISTOPH, tensions which fit4 into a recess 31 in a a resident of Chicago, in the county of Cook slidable locking-bolt 32, the operation of and State of Illinois, have invented certain which is controlled by the lock. rlhese eX- .j new and useful Improvements in Locks, of tensions serve to shift therbolt when the 60 which the following is a full, clear, and exsplndle and tumblers are rotated. Het description, s A key 33l which is adapted to be inserted The invention relates to key-controlled' mto a narrow slot 15a in the spindle 15, hasv locks, j l its opposite edges formed of irregular but o The invention designs to provide a lock corresponding outline, so thatits width at 65 which is simple in construction, and which all points will correspond to the distance becannot be operated eXcept by a properly tween the abutments 22 and 23 on each tumformed key. bler. Key 33 has a groove therein, and the The invention consists in the several novel slot 15a in the spindle is correspondingly l5 features hereinafter set forth and more parformed to guide the'key in'the spindle. 7o ticularly defined by claims at the conclusion When the projecting edge-portion of the key hereof. l r at one side of the key moves one end ofthe In the drawings: Figure 1 is a 'front said tumblers outwardly, the opposite abutview of a lock embodying the invention. ment on the same tumbler will be free, `to

2o Fig. 2 is a rear elevation. Fig. 3 is a -secmove inwardly a correspondingly extent by "75 tion taken on line 3-3 of Fig. 2, the key reason of the parallel-edged key. In this being shown in position to release the tummanner, the tumblers are positively shifted blers. Fig. 4 is a similar section, the key and controlled by the key without the use of being withdrawn. Fig. 5 is a section taken springs. The tumblers are confined against on line 5-5 of Fig. 4. Fig. 6 is a section axial movement between the cap 17 and the, v80 taken on line 6-6 of Fig. 3. Fig. 7 is a plan front of the barrel 13 by one another.' By of the slotted spindle. Fig. 8 is a section on adjusting the cap 'onthe spindle, the tumline 8-8 of Fig. e. blers may be' frictionally heldtogether to The lock is shown as secured to a plate 12 prevent undesirable freedom of movement 3o and-comprises a barrel 13 which is secured thereof. p 85 to said plate by screws 14. The barrel has In making the lock, the tumbers are all a sleeve or hub 13El extending through plate stamped of the same shape with abutments 12 to form a bearing for the key-spindle 15 26 and 27 of maximum length. The key will which has its front end journaled in hub 13a then be made with paralleledges, but of any and is formed with a head 16 for limiting desiredlcontour. The key, or a form like the 90 the spindle against rearward movement in key., is then inserted into the desired number the barrel. A cap 17 is Iconnected by a of assembled tumblers and With the entire screw-thread 18 to a screw-thread 19 on the series of' tumblersI for the lock adjusted to inner end of the spindle and has a flange the key, the projecting portions of the 20 bearing on the inner end of the cylinder abutments 26 and 27 will be cut ed on a 95 13 to support the inner end of the spindle. straight line, so that when the key is in the A series of tumbler disks or plates 21 lls spindle, all the tumblers will clear` the slots the space between the front wall of the bar- 28, 29 in the barrel and be free to rotate rel and the cap 17. Each tumbler is formed in the barrel and operate bolt 32.

e5 out of a thin stripor sheet of metal and com- In operation, when the bolt 32 is in lock- 100 prises a pair of oppositely disposed projecing position (Figs. 2 and 4) abutments 26, tions or teeth 22 and 23 which are adapted 27 on the tumblers will be in one of the slots to slide radially in grooves 24 on the oppo- 28, 29 and thus lock the .spindle against rosite sides of the spindle. Each tumbler also tation and bolt 32 against movement.

comprises a circular portion' 25 extending When a key of the correct form is inserted, 105 around the spindle anda pair of oppositely it will, in passing through the slot inthe disposed abutments 26 and r27 which are spindle, shift the tumblers successively, but adapted to pass respectively into slots 28 and when the key is fully inserted, all the tum- 29 in barrel 13 to lock the Spindle and the blers will be relatively'disposed and heldso tumblers against rotation. Anumber of the all theoutr ends of abutments 26 and 27 11G- will be alined and be clear of slots 28 and 29. The key may then be rotated to 'turn the s indle, and tumblers and cause arms 30 to siiift bolt 32. The lock shown is adapted for use Where the key is not to be removed when bolt 32 is unlocked. When the key is turned back to bring the abutments 26, 27 in registry with slots 2,8, 29, the key may be Withdrawn. During withdrawal of the key, its projecting edges will relatively shift the tumblers radially and positively and insure entry of the abutments into the slots, and

thus lock them and the bolt 82 against move.

ment.

The invention 'thus exemplifies a lock in which the use of springsoperated tumblers'is entirely avoided and in'which avery slight variation in contour of the key will make it impossible to operate the lock therewith. The manner of makingand construction of the tumblers make it practical to use very' thin metal, if desired. These tumblers can be very cheaply made with their abutments alike and then exactly sized according to the keys by placing a key or form in the assembled tumblers, formed for holding them in associated relation and then moving or vcutting off the abutments. The lock is exceedingly simple in construction.

l The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the ap pended claims without departing from the vspirit and scope of the invention.

Having thus described the inventiomwhat l claim as new and desire to secure by Lete ters Patent, is:

1. A lock comprising aspindle having a key way therein, a series of rotatable tumbler` plates provided with a pair of oppositely disposed abutments adapted respectively to normally engage the spindle and be engaged by a key to shift the tumblers in the opposite directions and locking means on the tumblers.

2. A lock comprising a spindle having a key Way therein, a series'o'f rotatable tumbler plates provided with a pair of oppositely f disposed abutments adapted respec tively to normally engage the spindle and to be engaged by a key to shift the tumblers in opposite directions and locking abutments on the tumblers v arying in length in accordance with the contour of. the key, so that when the key .has been inserted in the spindle, theends of the locking abutments will be alined whereby the spindleand plates may be rotated. y

3. A lock comprising a spindle having a key way therein, a. series ofA rotatable tumbler plates provided with a pair of oppositely disposed abutments adapted respectively to normally engage the spindle and to be engaged by a keyto shift the tumblers 1n opposite -directions,.means for holding'the Lacasse plates in face to face engagement, and locking-means on the tumblers.

4. A lock ,comprising a spindle havlng a key way therein, a series of rotatable tumbler plates provided with a pair of oppositely disposed abutments adapted respectively to normally engage the spindle and to be engaged by a key to shift the tumblers in opposite directions, means for holding. the

plates in face to face engagement and lock- 5. A lock comprisin av spindle having a i g key way therein, aseries of tumblerplates provided with a pair of oppositely disposed abutments engaging the spindle and adapted respectively to be engaged by a key to shift the tumblers in opposite directions., said plat/es being cut away to pass around the spindle and bei ng held against rotation relatively to the spindle, and locking means on the tumblers.

6. A lock comprising a spindlevhaving ai key way therein, aseres of tumbler plates provided with a-pair of oppositely disposed abutments engaging the spindle-and adapted respectively to be engaged by a key to shift the tumblers in opposite directions,

said plates being cutaway to pass around the spindle and being held against rotation relatively to the spindle, and locking abutments onthe tumblers varying in length in accordance with the contour of the key so that when the key has been inserted in the spindle, the ends of the locking abutments Will be alined.

7. A lock comprising a spindle having a key 'Way therein, a. series of tumbler plates provi-ded with a pair of oppositely disposed abutments adapted respectively to be engaged by a key to shift the tumblers in opposite directions, said spindle having longitudinal grooves therein in which said abut.

ments are radially movable, the abutments serving to connecttlie spindle and plates for rotatiomand locking means on the tumblers.

8. A lock comprising a spindle having a key way therein, a series of tumbler plates provided with a pair of oppositely disposed abutments adapted .respectively to be engaged by a key to shift the tumblers in opposite directions, said spindle having longitudinal grooves therein in which said abut- `ments are radially movable, the abutments serving to-connect the spindle and plates for rotation, and locking abutments on the tumblers varying in length in accordance with the contourof the key, so that when the key has been inserted in the spindle, the ends of the locking abutments will be alined.

9. A lock comprising a fixed barrel, a

spindle in the barrel and having a key way therein, a series of rotatable tumbler plates provided with a pair of oppositely disposed vabutments adapted respectively to normally 4spindle in the barrel and having a key Way therein, a series of rotatable tumbler plates provided with a pair of oppositely disposed abutments adaptedl respectively to be engaged by a key to shift the tumbler plates in opposite directions, locking means on' the tumbler plates comprising abutments for engaging the barrel to secure the plates against rotation, grooves in the spindle in which the oppositely disposed key-engaged abutments are slidable radially and means for holding the .plates in face to face engagement in the barrel.

11. A lock comprising a fixed barrel, a

l spindle in the barrel and having a key wav therein, a series of rotatable tumbler plates provided With a pair of oppositely disposed abutments adapted respectively to normally engage the spindle and to be engaged by a key to shift the tumbler plates in opposite dlrecn tions, locking means on the tumbler plates comprising oppositely disposed abutments for engaging the barrel to secure the plates against rotation, and means for holding the plates in face to face engagement in the barrel. v

12. A lock comprising a fixed barrel, a

spindle -in thebarrel and having a key Way therein, a. series of rotatable tumbler plates provided with a pair of oppositely disposed abutments adapted respectively to be engagedby a key to shift the tumbler plates in opposite directions, locking means on the tumbler plates comprising oppositely dis-f posed abutments for engaging the barrel to secure the plates against rotation, grooves in the spindle in which the oppositely disposed key-engaged abutments are slidable radially, `and means for holding the platesin face to face engagement in the barrel.

13. A lock comprising a fixed barrel, a rotatable spindle having a key Way therein,

a series of tumbler plates, each provided with a pair of oppositely disposed abutments adapted respectively to be engaged by a key to shift the tumbler plates in oppo- 'site directions, each tumbler being cut away around the spindle, and provided With locking abutments varying in length in accordance .Wi-th the contour of the key, so that when the key has been inserted in the spindle, the outer ends Will be alined, the barrel being' provided With means for receiving the locking abutments When they are out of alinement.

14. A lock comprising a fixed barrel, a rotatable spindle having a key Way therein, a series of tumbler plates, each provided with a pair of oppositely disposed abutments adapted respectively to be engaged by a key to shift the tumbler plates in opposite directions, each tumbler beingA cut away around the spindle, provided with locking abutments varying in length in accordance With the contour of the key, so that when. the key has been inserted in the spindle, the outer ends will be alined, the barrel being provided with means for receiving the locking abutments When they are out of alinement and adjustable means for holding the tumblers in face to face and sliding engagement.

15'. A lock comprising a xed barrel, a spindle rotatable therein and having a key Way formed therein, .a series of tumbler plates, each provided with a pair of oppositely disposed abutments adapted respectivelyto be engaged by a key, locking means between the tumblers and the barrel, some of the tumblers being provided With extensions, and a bolt connected to and operated by said extensions.

EMIL A. CHRISTOPH.

Witnesses:

MILDRED STUMPF, Err-[EL GERLACH. 

